/* * Process Table * * Copyright (C) 2001-2003 FhG Fokus * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /** Kamailio core :: internal fork functions and process table. * @file: pt.h * @ingroup core */ #ifndef _PT_H #define _PT_H #include #include #include #include "globals.h" #include "timer.h" #include "socket_info.h" #include "locking.h" #define MAX_PT_DESC 128 struct process_table { int pid; #ifdef USE_TCP int unix_sock; /* unix socket on which tcp main listens */ int idx; /* tcp child index, -1 for other processes */ #endif char desc[MAX_PT_DESC]; }; extern struct process_table *pt; extern gen_lock_t* process_lock; extern int *process_count; extern int process_no; extern struct tcp_child* tcp_children; int init_pt(int proc_no); int get_max_procs(void); int register_procs(int no); int get_max_open_fds(void); int register_fds(int no); int close_extra_socks(int proc_id, int proc_no); #define get_proc_no() ((process_count)?*process_count:0) /* return processes pid */ int my_pid(void); /** * Forks a new process. * @param desc - text description for the process table * @param make_sock - if to create a unix socket pair for it * @returns the pid of the new process */ int fork_process(int child_id,char *desc,int make_sock); /** * Forks a new TCP process. * @param desc - text description for the process table * @param r - index in the tcp_children array * @param *reader_fd_1 - pointer to return the reader_fd[1] * @returns the pid of the new process */ #ifdef USE_TCP int fork_tcp_process(int child_id,char *desc,int r,int *reader_fd_1); #endif #ifdef PKG_MALLOC void mem_dump_pkg_cb(str *gname, str *name); #endif #ifdef SHM_MEM int mem_dump_shm_fixup(void *handle, str *gname, str *name, void **val); #endif unsigned int set_fork_delay(unsigned int v); #endif